 Beyond its junction with the M2 and M22, the A26 continues as single carriageway into Antrim, passing The Junction, the first outlet centre opened in Northern Ireland and runs along the edge of Antrim town centre and onwards to a roundabout junction with the A57 route close to Belfast International Airport.Originally the A26 route continued directly ahead to the Aldergrove site, with a section passing the perimeter of the airport grounds, but the road was closed for security reasons.Until the early 1990s, all traffic was diverted through the small village of Killead, but a by-pass relieved the village from traffic heading north to the Airport in the 1990s.